I'm learning erlnag and have a small doubt regarding '.beam' file creation. For example I have helloworld.erl and top.erl files and helloworld.erl is imported in top.erl.

top.erl:

-module(top).
-import(helloworld, [start/0]).
-export([main/0]).

main() ->
  io:fwrite("hello\n"),
  start().

helloworld.erl

-module(helloworld).
-export([start/0]).

start() ->
  io:fwrite("hello world\n").

Then compiling top.erl using "erlc top.erl".Then, it is creating only top.beam file but not creating helloworld.beam file.
But when we see in case of python and java, object files will be generate for the imported file also while compiling importing file.
is this the behavior(i.e not creating .beam file for imported file) of 'erlang' or am i understood wrong?
(or)
Please explain the process to get the '.beam' files for imported one also while running importing module.
Thanks..